The Journal of Experimental Medicine
PBL InterferonSource
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow PPT slides of all figures
Right arrow Alert me when this article is cited
Right arrow Citation Map
Services
Right arrow Email this article
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new content in the JEM
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Wakil, A. E.
Right arrow Articles by Locksley, R. M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Wakil, A. E.
Right arrow Articles by Locksley, R. M.
Social Bookmarking
 Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

J. Exp. Med., Volume 188, Number 9, November 2, 1998 1651-1656

Interferon gamma  Derived from CD4+ T Cells Is Sufficient to Mediate T Helper Cell Type 1 Development

By Adil E. Wakil,* Zhi-En Wang,*Dagger James C. Ryan,§ Deborah J. Fowell,* and Richard M. Locksley*Dagger

From the * Department of Medicine and the Department of Microbiology/Immunology, and the Dagger  Howard Hughes Medical Institute, University of California San Francisco, San Francisco, California 94143; and the § Veterans Administration Medical Center, San Francisco, California 94121

Interferon gamma  (IFN-gamma ) has been implicated in T helper type 1 (Th1) cell development through its ability to optimize interleukin 12 (IL-12) production from macrophages and IL-12 receptor expression on activated T cells. Various systems have suggested a role for IFN-gamma derived from the innate immune system, particularly natural killer (NK) cells, in mediating Th1 differentiation in vivo. We tested this requirement by reconstituting T cell and IFN-gamma doubly deficient mice with wild-type CD4+ T cells and challenging the mice with pathogens that elicited either minimal or robust IL-12 in vivo (Leishmania major or Listeria monocytogenes, respectively). Th1 cells developed under both conditions, and this was unaffected by the presence or absence of IFN-gamma in non-T cells. Reconstitution with IFN-gamma -deficient CD4+ T cells could not reestablish control over L. major, even in the presence of IFN-gamma from the NK compartment. These data demonstrate that activated T cells can maintain responsiveness to IL-12 through elaboration of endogenous IFN-gamma without requirement for an exogenous source of this cytokine.

Key words: T helper type 1 cellsinterferon gamma natural killer cellsLeishmaniaListeria


Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?


This article has been cited by other articles:



  Home | Help | Feedback | Subscriptions | Archive | Search
TABLE OF CONTENTS